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For the first large project at Alexanderplatz six teams of architects were involved in a competition for a multi-functional building complex. In particular, solutions were sought for the shopping and entertainment centre - from a functional aspect, a closed box of approx. 250 x 100 meters - with a design compatible to this inner city site.

For the project’s basic design concept we folded the external envelope and developed a fractal geometry, recalling the line of the historical moat and city wall. This approach, using a structure assembled from triangular elements, created the architectural form and was at the same time an efficient load-bearing structure for the 150 m office and residential tower. In the rear part of the site, on a new city square, we planned a smaller high-rise building with hotel and flats.

For the first large project at Alexanderplatz six teams of architects were involved in a competition for a multi-functional building complex. In particular, solutions were sought for the shopping and entertainment centre - from a functional aspect, a closed box of approx. 250 x 100 meters - with a design compatible to this inner city site.

For the project’s basic design concept we folded the external envelope and developed a fractal geometry, recalling the line of the historical moat and city wall. This approach, using a structure assembled from triangular elements, created the architectural form and was at the same time an efficient load-bearing structure for the 150 m office and residential tower. In the rear part of the site, on a new city square, we planned a smaller high-rise building with hotel and flats.